Sources

Privacy is a right

These protect people against unreasonable search and seizure, and against arbitrary interference with privacy. They do not settle the question for plate readers: US courts have generally held that a plate shown in public is not private, though some judges have said a dense enough camera network could count as a search. That open question is part of why rules matter.

1. United States. The Fourth Amendment protects "the right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures."

   Congress.gov, Constitution Annotated: Fourth Amendment

2. Canada. Section 8 of the Charter: "Everyone has the right to be secure against unreasonable search or seizure."

   Justice Laws, Canadian Charter of Rights and Freedoms

3. International. Article 12: "No one shall be subjected to arbitrary interference with his privacy, family, home or correspondence, nor to attacks upon his honour and reputation." The Declaration is not a binding treaty.

   United Nations, Universal Declaration of Human Rights

How the cameras work

1. Each agency sets retention. Flock's default was 30 days. In August 2026 it made 7 days the default for new police customers and recommends 7 to everyone; existing customers keep their settings.

   Flock, Flock guardrails address LPR privacy concerns and police transparency (Aug 13, 2026) · Stateline, Flock Safety tightens safeguards as states, cities question surveillance network (Aug 14, 2026)

2. Searches by vehicle features, no plate needed. Flock's feature search, trademarked "Vehicle Fingerprint" and now marketed as "Vehicle Signature", matches make, color, body type, racks, decals and bumper stickers.

   Flock, How to solve crime without a license plate · Flock, Falcon license plate recognition · Flock, Trademark notice

3. Agencies opt into national sharing. Agencies that share their data can search others' cameras across the country. Flock told Senator Wyden about 75% of its police customers had enrolled; it has since switched national lookup off in some states, including California.

   ACLU, Flock, Massachusetts and updates

Why it is a privacy problem

1. A stated reason, not a warrant. Officers give a reason, not a warrant. Flock announced a pick-list of reasons in late 2025 and says a case number will be required for searches by the end of 2026. Earlier audit logs showed reasons like "LMAO" and "idk".

   EFF, "High crime LMAO": how cops are treating mass surveillance as a joke (Sep 2026)

2. Immigration enforcement. Local police ran more than 4,000 lookups on behalf of ICE.

   404 Media, ICE taps into nationwide AI-enabled camera network, data shows (2025)

3. The Texas abortion search. A Johnson County deputy searched more than 83,000 cameras for a woman after a self-managed abortion; court records show deputies considered charging her.

   404 Media, Police said they surveilled woman who had an abortion for her safety. Court records show they considered charging her

4. Illinois data used against Illinois law. In 2025 the Secretary of State said out-of-state police and US Customs and Border Protection accessed Illinois Flock data in violation of a state law barring sharing for immigration or abortion enforcement.

   Capitol News Illinois, Illinois license plate cameras used illegally by out-of-state police, Giannoulias says (Jun 12, 2025) · Axios Chicago, U.S. Customs and Border Protection accesses Illinois license plate data (Aug 26, 2025)

5. Private networks. Home Depot and Lowe's share data from hundreds of cameras with police.

   404 Media, Home Depot and Lowe's share data from hundreds of AI cameras with cops (2025)

6. Errors land on people. In Aurora, Colorado, police held a family at gunpoint and handcuffed children after their system flagged the car's plate as stolen; the stolen vehicle was a Montana motorcycle with the same number. The city settled for $1.9 million. (Not a Flock camera.)

   Denver7, Family of Black girls handcuffed by Aurora police, held at gunpoint reach $1.9 million settlement (Feb 2024)

United States

1. Washington public records. A Skagit County judge ruled Flock images public records in November 2025; the legislature then exempted plate reader data from public records requests (SB 6002, signed March 30, 2026), and set 21-day deletion for most data.

   EFF, Washington court rules data captured by Flock Safety cameras are public records (Nov 2025) · Washington State Standard, Washington adds safeguards for Flock cameras (Mar 30, 2026)

2. Cities that ended contracts. Mountlake Terrace, Washington cancelled before installation (Dec 2025); Mountain View, California voted to terminate (Feb 2026); South Lyon, Michigan voted not to renew and to cover its cameras (Sep 2026). DeFlock counts more than 50 communities that cancelled, paused or rejected Flock in 2026.

   Everett Herald, Mountlake Terrace cancels Flock Safety contract · Mountain View Voice, City council terminates Mountain View's license plate camera contract · Michigan Advance, South Lyon City Council votes to cover cameras, end contract with Flock

Canada

1. No Flock contracts found. As of November 2026 we found no public record of Flock contracts with Canadian police or cities.

   David Fraser, Canadian Privacy Law Blog, Would a Flock-type surveillance network fly under Canadian privacy laws? (Oct 20, 2026)

2. Toronto. Every Toronto Police patrol vehicle carries a plate reader.

   Blue Line, TPS fleet now fully equipped with automatic licence plate recognition (May 7, 2024)

3. Brampton, Ontario. Genetec plate readers at 50 intersections, selected with Peel Regional Police.

   City of Brampton, Intersection cameras · Genetec, City of Brampton selects Genetec solutions (Mar 2025)

4. British Columbia, 2012. The privacy commissioner treated plate data as personal information and found Victoria police were not authorized to disclose non-hit data to the RCMP.

   OIPC BC, Investigation Report F12-04: Use of automated licence plate recognition technology by the Victoria Police Department (Nov 15, 2012)

5. Ontario guidance. The privacy commissioner's guidance for police includes a section on retention of plate data.

   IPC Ontario, Guidance on the use of automated licence plate recognition systems by police services (Dec 2024)

Tools

1. DeFlock is an open-source, crowd-sourced map of plate reader cameras, stored in OpenStreetMap.

   DeFlock, deflock.org · 404 Media, The open source project DeFlock is mapping license plate surveillance cameras all over the world (Nov 2024)